Masterpiece Mystery!

Sherlock II - A Scandal in Belgravia

Sherlock and Watson are plunged into a case of blackmail involving crafty dominatrix Irene Adler, whose motto is "know when you are beaten." It seems she has incriminating photos of a session with a British royal. Can she outsmart Sherlock at his own game? And at a battle he is ill prepared to wage - love?